Answer:
The acceleration of the box is;
[tex]a=10m/s^2[/tex]Explanation:
Given;
Final velocity v = 30 m/s
initial velocity u = 0
time taken t = 3 seconds
Acceleration is the change in velocity per unit time.
The acceleration a can be calculated using the formula;
[tex]a=\frac{v-u}{t}[/tex]substituting the given values we have;
[tex]\begin{gathered} a=\frac{30-0}{3} \\ a=\frac{30}{3} \\ a=10m/s^2 \end{gathered}[/tex]The acceleration of the box is;
[tex]a=10m/s^2[/tex]